
import sqlite3
import os


class SqliteUtil():
    """
    simpleToolSql for sqlite3
    简单数据库工具类
    编写这个类主要是为了封装sqlite，继承此类复用方法
    """
    def __init__(self,uid):
        """
        初始化数据库，默认文件名 stsql.db
        uid：用户 ID
        """
        if not os.path.exists('databases'):
            os.makedirs('databases')
        self.filename = 'databases/weibo_'+str(uid)+'.db'
        self.db = sqlite3.connect(self.filename)
        self.c = self.db.cursor()
    
    def close(self):
        """
        关闭数据库
        """
        self.c.close()
        self.db.close()

    def execute(self,sql,param=None):
        """
        执行数据库的增、删、改
        sql：sql语句
        param：数据，可以是list或tuple，亦可是None
        retutn：成功返回True
        """
        try:
            if param is None:
                self.c.execute(sql)
            else:
                if type(param) is list:
                    self.c.executemany(sql,param)
                else :
                    self.c.execute(sql,param)
            count = self.db.total_changes
            self.db.commit()
        except Exception as e:
            print(e)
            return False,e
        if count > 0 :
            return True
        else :
            return False

    def query(self,sql,param=None):
        """
        查询语句
        sql：sql语句
        param：参数,可为None
        retutn：成功返回True
        """
        if param is None:
            self.c.execute(sql)
        else:
            self.c.execute(sql,param)
        return self.c.fetchall()
        
if __name__ == "__main__":
    """
    测试代码
    """
    # sql = SqliteUtil("123")
    # f = sql.execute("create table if not exists test (id int not null,name text not null,age int);")
    # print("ok")
    # sql.execute("insert into test (id,name,age) values (?,?,?);",[(1,'abc',15),(2,'bca',16)])
    # res = sql.query("select * from test;")
    # print(res)
    # sql.execute("insert into test (id,name) values (?,?);",(3,'bac'))
    # res = sql.query("select * from test where id=?;",(3,))
    # print(res)
    # sql.close()